]> git.mxchange.org Git - quix0rs-gnu-social.git/blob - plugins/ActivityModeration/classes/Deleted_notice.php
newUri might as well be put in Managed_DataObject
[quix0rs-gnu-social.git] / plugins / ActivityModeration / classes / Deleted_notice.php
1 <?php
2 /*
3  * Laconica - a distributed open-source microblogging tool
4  * Copyright (C) 2008, 2009, Control Yourself, Inc.
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU Affero General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.     See the
14  * GNU Affero General Public License for more details.
15  *
16  * You should have received a copy of the GNU Affero General Public License
17  * along with this program.     If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 if (!defined('GNUSOCIAL')) { exit(1); }
21
22 /**
23  * Table Definition for deleted_notice
24  */
25
26 class Deleted_notice extends Managed_DataObject
27 {
28     public $__table = 'deleted_notice';      // table name
29     public $id;                              // int(4)  primary_key not_null
30     public $profile_id;                      // int(4)   not_null
31     public $uri;                             // varchar(191)  unique_key   not 255 because utf8mb4 takes more space
32     public $act_uri;                         // varchar(191)  unique_key   not 255 because utf8mb4 takes more space
33     public $act_created;                     // datetime()   not_null
34     public $created;                         // datetime()   not_null
35
36     public static function schemaDef()
37     {
38         return array(
39             'fields' => array(
40                 'id' => array('type' => 'int', 'not null' => true, 'description' => 'notice ID'),
41                 'profile_id' => array('type' => 'int', 'not null' => true, 'description' => 'profile that deleted the notice'),
42                 'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'URI of the deleted notice'),
43                 'act_uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'URI of the delete activity, may exist in notice table'),
44                 'act_created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date the notice record was created'),
45                 'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date the notice record was deleted'),
46             ),
47             'primary key' => array('id'),
48             'unique keys' => array(
49                 'deleted_notice_uri_key' => array('uri'),
50                 'deleted_notice_act_uri_key' => array('act_uri'),
51             ),
52             'indexes' => array(
53                 'deleted_notice_profile_id_idx' => array('profile_id'),
54             ),
55         );
56     }
57
58     public static function addNew(Notice $notice, Profile $actor=null)
59     {
60         if (is_null($actor)) {
61             $actor = $notice->getProfile();
62         }
63
64         if ($notice->getProfile()->hasRole(Profile_role::DELETED)) {
65             // Don't emit notices if the notice author is (being) deleted
66             return false;
67         }
68
69         $act = new Activity();
70         $act->verb = ActivityVerb::DELETE;
71         $act->time = time();
72         $act->id   = $notice->getUri();
73
74         $act->content = sprintf(_m('<a href="%1$s">%2$s</a> deleted notice <a href="%3$s">{{%4$s}}</a>.'),
75                             htmlspecialchars($actor->getUrl()),
76                             htmlspecialchars($actor->getBestName()),
77                             htmlspecialchars($notice->getUrl()),
78                             htmlspecialchars($notice->getUri())
79                            );
80
81         $act->actor = $actor->asActivityObject();
82         $act->target = new ActivityObject();    // We don't save the notice object, as it's supposed to be removed!
83         $act->target->id = $notice->getUri();
84         $act->target->type = $notice->getObjectType();
85         $act->objects = array(clone($act->target));
86
87         $url = $notice->getUrl();
88         $act->selfLink = $url;
89         $act->editLink = $url;
90
91         // This will make ActivityModeration run saveObjectFromActivity which adds
92         // a new Deleted_notice entry in the database as well as deletes the notice
93         // if the actor has permission to do so.
94         $stored = Notice::saveActivity($act, $actor);
95
96         return $stored;
97     }
98
99     static public function fromStored(Notice $stored)
100     {
101         $class = get_called_class();
102         $object = new $class;
103         $object->uri = $stored->getUri();   // Lookup by delete activity's URI! (that's what is _stored_ in our db!)
104         if (!$object->find(true)) {
105             throw new NoResultException($object);
106         }
107         return $object;
108     }
109
110     // The one who deleted the notice, not the notice's author
111     public function getActor()
112     {
113         return Profile::getByID($this->profile_id);
114     }
115
116     // As above: The one who deleted the notice, not the notice's author
117     public function getActorObject()
118     {
119         return $this->getActor()->asActivityObject();
120     }
121
122     static public function getObjectType()
123     {
124         return 'activity';
125     }
126
127     protected $_stored = array();
128
129     public function getStored()
130     {
131         $uri = $this->getUri();
132         if (!isset($this->_stored[$uri])) {
133             $this->_stored[$uri] = Notice::getByPK('uri', $uri);
134         }
135         return $this->_stored[$uri];
136     }
137
138     public function getUri()
139     {
140         return $this->uri;
141     }
142
143     public function asActivityObject(Profile $scoped=null)
144     {
145         $actobj = new ActivityObject();
146         $actobj->id = $this->getUri();
147         $actobj->type = ActivityObject::ACTIVITY;
148         $actobj->actor = $this->getActorObject();
149         $actobj->target = new ActivityObject();
150         $actobj->target->id = $this->getUri();
151         // FIXME: actobj->target->type? as in extendActivity, and actobj->target->actor maybe?
152         $actobj->objects = array(clone($actobj->target));
153         $actobj->verb = ActivityVerb::DELETE;
154         $actobj->title = ActivityUtils::verbToTitle($actobj->verb);
155
156         $actor = $this->getActor();
157         $actobj->content = sprintf(_m('<a href="%1$s">%2$s</a> deleted notice {{%3$s}}.'),
158                             htmlspecialchars($actor->getUrl()),
159                             htmlspecialchars($actor->getBestName()),
160                             htmlspecialchars($this->getUri())
161                            );
162
163         return $actobj;
164     }
165
166     static public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
167     {
168         // the original notice id and type is still stored in the Notice table
169         // so we use that information to describe the delete activity
170         $act->target = new ActivityObject();
171         $act->target->id = $stored->getUri();
172         $act->target->type = $stored->getObjectType();
173         $act->objects = array(clone($act->target));
174
175         $act->title = ActivityUtils::verbToTitle($act->verb);
176     }
177
178     static public function beforeSchemaUpdate()
179     {
180         $table = strtolower(get_called_class());
181         $schema = Schema::get();
182         $schemadef = $schema->getTableDef($table);
183
184         // 2015-10-03 We change the meaning of the 'uri' field and move its 
185         // content to the 'act_uri' for the deleted activity. act_created is
186         // added too.
187         if (isset($schemadef['fields']['act_uri'])) {
188             // We already have the act_uri field, so no need to migrate to it.
189             return;
190         }
191         echo "\nFound old $table table, upgrading it to contain 'act_uri' and 'act_created' field...";
192
193         $schemadef['fields']['act_uri'] = array('type' => 'varchar', 'not null' => true, 'length' => 191, 'description' => 'URI of the deleted notice');
194         $schemadef['fields']['act_created'] = array('type' => 'datetime', 'not null' => true, 'description' => 'datetime the notice record was created');
195         unset($schemadef['unique keys']);
196         $schema->ensureTable($table, $schemadef);
197
198         $deleted = new Deleted_notice();
199         $result = $deleted->find();
200         if ($result === false) {
201             print "\nFound no deleted_notice entries, continuing...";
202             return true;
203         }
204         print "\nFound $result deleted_notice entries, aligning with new database layout: ";
205         while($deleted->fetch()) {
206             $orig = clone($deleted);
207             $deleted->act_uri = $deleted->uri;
208             // this is a fake URI just to have something to put there to avoid NULL. crc32 of uri is to avoid collisions
209             $deleted->uri = TagURI::mint(strtolower(get_called_class()).':%d:%s:%s:%s:crc32=%x',
210                                 $deleted->profile_id,
211                                 ActivityUtils::resolveUri(self::getObjectType(), true),
212                                 'unknown',
213                                 common_date_iso8601($deleted->created),
214                                 crc32($deleted->act_uri)
215                             );
216             $deleted->act_created = $deleted->created;  // we don't actually know when the notice was created
217             $deleted->updateWithKeys($orig, 'id');
218             print ".";
219         }
220         print "DONE.\n";
221         print "Resuming core schema upgrade...";
222     }
223
224 }